1 Metre, 1 centimetre, 1 kilometre, and 1 millimetre.

Give an example for mixture and justify your answer with reason.

Define - Sedimentation

Define the term habitat.

Relate the terms leaves and photosynthesis.

How do birds catch their prey?

Which structure helps the bird to change its direction while flying in air?

Differentiate between carbohydrate and protein.

Define balanced diet.

Who are the pioneers / forerunners of computer?

Differentiate hardware and software.

Give any two examples of operating software

Mention any two output devices

Make a list of electrical equipments at home which we get heat from.

What is temperature?

Identify the conductor from the following figures.

Assertion (A): It is very easy for our body to receive electric shock.
Reason (R): Human body is a good conductor of electricity.
a. Both A and R are correct and R is the correct explanation for A.
b. A is correct, but R is not the correct explanation for A.
c. A is wrong but R is correct.
d. Both A and R are correct and R is not the correct explanation for A.

You are given some candle wax. Can you make a candle doll from it? What kind of change is this?

Define a slow change.

What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?

How do the roots of land plants get oxygen for breathing?

What are the essential components of a cell?

Which one is called as “Area of movement"?

Write any two functions of digestive system.

Name the important parts of the eye.

Name the parts of a computer.

Bring out any two differences between input and output devices.

What is called as natural magnet?

Draw the various types of artificial magnets

We could see clouds almost every day. Why doesn’t it rain daily?

What are the types of rain water harvesting?

Write the physical properties of water.

What is meant by evaporation?

Explain the uses of plaster of paris.

Why gypsum is used in cement production?

What is meant by fertilizer and write its types.

What is meant by adhesive?

Define ecosystem.

What are the pollutions caused by the objects given below?
a. Loud Speaker
b. Plastic

How can we reduce land pollution?

How can we reduce water pollution?

Name any three medicinal plants, which are available in your area?

What are the uses of timber?

What is meant by Softwoods?

What is meant by composite wood?